Dispensing nozzle



y 7, 1940-- R. w. BENQFSKY ET AL 9.947

DISPENSING NOZZLE I Filed July 31, 1937 I INVENTORS RJAL'BEN FSKY y a/voH. H. DAM ELS W 77. 1 419 ATTQ NEY.

Patented May 1940 DISPENSING NOZZLE Richard w. Benotsky, Oakland, andHarold n. Daniels, Alameda, Calif.

Application July 31, 1937, Serial No. 156,772

I 5 Claims. (Cl. 221-147) The invention relates to a nozzle which isparticularly designed for mounting on ahandsupported container of liquidto dispense metered charges of liquid from the container.

An object of the invention is to provide an improved dispensing noz'zlewhich may be actuated with particular rapidity to dispense successiveand like charge of liquid while disposed in the same liquid-dispensingposition, said position corresponding to a pouring position for thecontainer.

Another object is to provide a nozzle of the type described which may bereadily and optionally utilized to provide a regulated constant flow ofliquid from a container which mounts it.

A further object is to provide an improved dispensing nozzle with avalve means which is arranged to be controlled as desired by the contactof a valve operating stem with a vessel which is to receive the liquid.

Yet another object is to provide means on the valve stem for suchengagement with a wall ofthe receiving vessel as to insure a fixeddisposal of the discharge outlet of the nozzle with respect to thevessel.

The invention possesses other objects and features of advantage, some ofwhich, with'the foregoing, will be set forth or be apparent in thefollowing description of a typical embodiment of the invention, and inthe accompanying drawing, in which,

Figure l is an elevation showing a dispenser nozzle embodying thepresent features of invention mounted on a bottle which is disposed todischarge liquid from the bottle into a tumbler, a portion of thetumbler being broken away.

Figure 2 is an enlarged perspective view of a tumbler-contacting membershown in Figure 1.

Figure 3 is an enlarged and partly sectional side view of the nozzle inliquid-discharging position, but with a discharge valve thereof closed.

Figure 4 is a full axial section of the nozzle in discharging condition.

Figures 5 and 6 are transverse sections of the nozzle taken respectivelyat 5-5 and 6-6 in Figure 4. I

A primary use for the present type of. nozzle is the dispensing ofpredetermined and equal quantitles of a beverage, or other liquid, froma supply contained in a bottle B and into receiving container such as atumbler C, from which the liquid may be drunk or otherwise removed, andthe present disclosure is, by way of illustration, specific to such ause for the nozzle. The bottle B is 01' a size and form suitable formanual support, and has a discharge neck N terminating at a lip portionL having a flaring cork-receiving bore in which a complementary portionof the nozzle may engage in lieu of a cork for the bottle as a means formounting the'nozzle on the bottle. 1

The features of the present invention are embodied in a unitary nozzlestructure 8 wherein a casing provides a metering cavity 9 in which avalve means of the unit is'operatively disposed.

The inner end portion of the casing. comprises a tubular member II whichis conically tapered to its free end and carries a sleeve l2 of cork orother yielding material for sealing and retaining the member within thebore of the bottle lip portion L when'the unit is mounted on the bottle.

An intermediate casing portion l3 comprises a member having acylindrical wall portion l4 and an inturned radial wall at its innerend, the latter wall being centrally apertured to sealedly engage theouter end of the member II. The member l3 may be transparent to providefor viewing the contents of the metering cavity 9, and if formed of amaterial which is originally plastic, may be formed around a radialflange l6 provided adjacent the outer end of the member II to eiiect thedesired sealed connection. As shown, the inner end of the member I I isexternally threaded to carry a nut I! for securing the soft sealingsleeve [2 on the member and. between the nut and the wall I5; in thismanner, a replacement of the sleeve l2 may be readily made.

A forward casing portion [8 extends forwardly from the portion l3 and isturned inwardly to define a discharge opening l9 having its planeperpendicular to the nozzle axis. In the present structure, the casingportion l8 comprises a separately formed member which tightly engagesabout the forward end of the member l3 to provide a press-fitassociation of the members. The member I8 comprises a relatively thinshell, and the inner face portion thereof adjacent the opening I9 isarranged to provide a seat 2| for a valve disc which normally engagessaid seat and is provided by a plunger element 23 which is arranged forreciprocation to and from the seat axially of the nozzle unit. The valvedisc preferably comprises a contact ring 22 of a rubber or othercomposition which is slightly yielding for providing a liquid seal atthe seat 2|, and the ring 22 is shown as being fixed to the plunger 23by its engagement in an annular groove provided around the plunger, saiddisc being smallclosed at the forward end of its :bore and tele-.

scopically receives the forward end portion of the tube 24. The tube 24supports and guides the plunger between its limiting forward position asdetermined by the seating of the valve disc and a limiting rearwardposition as determined by the engagement of the forward end of the tube24 with the closed end of the tube 25.

An helical compression spring 26 receives the tubes 24 and 25 axiallythrough it, and is cooperative between the plunger at the base of thetube 25 and a seat between the member II and the tube 24 to constantlyurge a seating of the valve disc 22 to seal the discharge passage l9.

Ports 2! are provided through the tube 25 at the forward portion thereofwhich is uncovered when the valve disc 22 engages the seat 2|, and whenthe plunger 25 is sufficiently displaced-the tube 24 will close the DOItS 21 in the manner of a slide valve, this being the condition when theplunger is displaced to engage the extremity of the tube 24, it beingnoted that the latter tube is constantly open to the liquid in thebottle B. The annular surface provided at the forward end of the tube24', and the seat provided for it within the forward end of the tube 25are preferably perpendicular to the nozzle axis whereby the limitingengagement of the tube 24 with said seat provides a liquid-tight jointthereat, it being noted that the telescopic engagement of the tubes mustbe free enough to avoid undue friction between the tubes and so mightpermit some liquid leakage into the metering chamber 9 as the latter isbeing emptied unless this final seal is provided. It will be understoodthat the telescopically engaged tubes 24 and 25 define an axial spacewhich is not part of the metering chamber 9, and that said chamber istherefore annular in cross-section. A relatively small air tube 28 isconnected with the annular space 29 defined between the tubular memberII and the tube 24, preferably at the inner end of these members, saidtube being shown as extending for some distance between.

the joined ends of the member and tube and well into the space of thebottle which mounts the nozzle. As shown, the tube 28 is sealedlyengaged between the bore of the member H and a trough-like inward offset3| provided in the tube 24 to receive the forward end of the tube 28 toprovide an open connection between the tube 28 and the space 29, thelatter space comprising a rearward extension of the metering space 9which is in greater part defined by and between the casing portions I 3and I 8.

A suitable means is provided for facilitating a displacement of theplunger 23 to open the discharge valve of the unit when the nozzleisdisposed for the gravity discharge therefrom of a liquid from a bottle Band into a receiving vessel such as the tumbler C. A simple andpreferred means for the purpose comprises a reduced outer portion 33 ofthe plunger 23 which extends axiallyforwardly from the valve disc 22 asa valve-operating stem for pressing inwardly to open the discharge valvewhile closing the intake valve I extremity in set position with respectto the tumbler while liquid is being discharged into the tumbler fromthe nozzle. Accordingly, hooks are provided on thestem 33 for engagementover the tumbler lip to hold the stem extremity against movementdownwardly along the tumbler side while the stem is forcibly pressedagainst the tumbler side to open the discharge valve, it being noted.that the nozzle will be disposed above a normal to the tumbler wall atthe point engaged by the stem tip whereby a component of the pressurewill urgethe stem tip downwardly along the engaged tumbler side. Asshown, a. hook member 34 is provided with three equally spaced radiatingarms 35 extending from a central sleeve member 36 for mounting on thestem 33, said arms having forwardly directed extensions 31 for selectivehooking over a tumbler lip. The arrangement is such that at least oneextension 31 will always be disposed above the stem for hooking over thetumbler lip; if the engaged extension is ,not in a vertical planethrough the nozzle axis when first engaged with the tumbler lip, it willrotate to such position as the valve is opened because the plunger 23 isthen free to rotate.

As particularly illustrated, the hook assembly 34 is removably andfrictionally mounted on the stem 33 by reason of the engagementtherewith of a friction ring 38 mounted in an annular recess provided inthe bore of the sleeve 36. The hook arms might, of course, be providedas integral parts of the valve stem 33, or be otherwise Th stem 33 mayeither be engaged by a persons hand mounted on the stem. It will benoted that, the

sleeve 36 functions as a baille or dam to limit the fiow of dischargingliquid along the stem 33.

When the discharge valve is closed and the bottle and nozzle are placedin liquid-discharging position as in Figure 3, liquid from the bottlewill fill the nozzle cavity 9 by reason of the permitted unobstructedfiow of liquid into the cavity through the tubes 24 and 25 and the ports21 in the latter tube in exchange for the air which escapes freely fromsaid cavity through the tube 28. When the cavity 9 is full of liquid,the pressure of the stem 33 against the tumbler will effect a relativeaxial movement of the nozzle casing and plunger to displace the plungerto its inner limit as in Figure 4 for simultaneously releasing theliquid charge from the cavity 9 while completely closing thepassageprovided by the tubes 24 and 25; in this manner the amount of liquiddischarge will be limited to the space of the cavity and is thereforemetered. A subsemetered charge of liquid in the cavity. If the plunger23 should be held only partly displaced to leave the ports 21 partlyopen, a continuous flow of liquid from the bottle-may be provided at arate determined by the degree of opening proareas-i7 vided at the ports;it will thus be understood that a metered or a controlled continuousdischarge of liquid from the bottle B maybe alternatively provided withthe nozzle unit 8.

In connection with the present nozzle unit, it is to be particularlynoted that the provision of the space 29 and the connection of therelatively long tube 28 at the inner end ofsaid space insures against aliquid-flow interference with the flow of liquid-replacing air into thebottle for any pouring position for the nozzle. Also, the readydischarge from, and refilling of, the nozzle cavity 9 may occur withoutregard to the positioning of the air tube 28 with respect to the nozzleaxis, whereby the dispensing of liquid from a bottle mounting a nozzle 8may be effected without requiring any rotative adjustment of the bottleand nozzle. Furthermore, the specific combination of disc and slidevalves in the present nozzle structure permits a particularly rapiddischarge of metered liquid from the nozzle at the disc valve whileproviding a governed control of liquid fiow into the nozzle through theslide valve arrangement.

From the foregoing description taken in connection with the accompanyingdrawing, the ad-. vantages of construction and method ofuse will bereadily understood by those skilled in the art to which this inventionappertains. While we have described the features and principles ofoperation of a structure which we now consider to be a preferredembodiment of our invention,

we desire to have it understood that the present showing is primarilyillustrative, and that such changes may be made, when desired, as fallwithin the scope of the following claims.

We claim:'

1. In combination with a receptacle having a side wall terminating at anupper lip, a liquiddispensing nozzle comprising a tubular containerprovided with a valve discharge passage at and across its forward end, amovable valve element operative to close said discharge passage andinwardly displaceable for opening the passage, spring means normallyoperative to' dispose said valve element for closing the passage, a.valve stem extending axially forwardly from the valve element throughsaid passage and arranged for oblique thrusting engagement with saidreceptacle wall for opening the valve against the resistance of saidspring, and a hook means on said stem extending laterally therefrom andopening forwardly for engagement over the receptacle lip to limit thedownward movement of the tip of the stem along the wall while the stemtip operatively engages the wall.

2. In a dispensing nozzle for operative mounting at the end of atubular-discharge neck of a bottle or the like, a cylindric casingproviding a metering chamber and provided with a discharge passage atits forward end and an inlet passage at its rearward end, valve elementsoperative to selectively close the respective said passagesalternatively for effecting an alternate filling and emptying of thechamber while the bottle and nozzle are disposed in a position forpouring liquid from the bottle, means disposed entirely within saidchamber connecting said valve elements for their actuation together,means for mounting the nozzle on the bottle neck, andan air pipe fixedto the casing and constantly connecting the extreme inner end of thechamber with a point within the bottle.

3. In a liquid-dispensing nozzle for operative mounting at a dischargeoutlet for a sealed container, an elongated casing defining a chamber inthe chamber and for movement between limiting forward and rear positionsthereof, one of said tubes being radially perforated whereby the tubesare cooperative as a slide-valve with respect to the flow of liquid fromthe container and within the first tube to the chamber portion definedabout the tubes and in such manner that said slide valve is open whenthe second tube is in its limiting forward position and is closed whenthe same tube is in its limiting rear position, and a valve member fixedto the second said tube and operative to close the forward casingopening only when the tube is in its limiting forward position.

4. A structure in accordance with claim 3 having an air-venting tubeextending rearwardly from the rear end of the space defined between thecasing and the first tube and through the container outlet into thecontainer whereby liquid flowing from the container into the casingspace about the telescopically engaged tubes may be replaced by airescaping from said space through said venting tube.

5. In a dispensing nozzle for operative mounting at a discharge outletfor a sealed container arranged for its constant support in an invertedposition for the gravity flow of liquid therefrom,

a casing providing a metering chamber having discharge and inletpassages at opposite ends thereof, a disc valve operative outwardly ofthe inner end of said discharge passage to close the same, a slide valveoperative to close said inlet passage to an adjusted degree, and anactuating element extending from the casing and connecting said valvesfor their synchronous operation between limiting positions thereof suchthat either valve is open when the other is closed and both valves areopen in an intermediate position thereof to permit a continuous flow ofliquid directly from the inverted bottle and at a a rate regulated bythe setting of the slide valve.

RICHARD W. BENOFBKY. HAROLD H. DANIELS.

